JPS641518A - Foamed blow molded form with skin - Google Patents

Foamed blow molded form with skin

Info

Publication number
JPS641518A
JPS641518A JP63124542A JP12454288A JPS641518A JP S641518 A JPS641518 A JP S641518A JP 63124542 A JP63124542 A JP 63124542A JP 12454288 A JP12454288 A JP 12454288A JP S641518 A JPS641518 A JP S641518A
Authority
JP
Japan
Prior art keywords
parison
molded form
molding
blow
tools
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP63124542A
Other languages
Japanese (ja)
Other versions
JPH0129692B2 (en
JPH011518A (en
Inventor
Toshio Sugawara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Kasei Co Ltd
Original Assignee
Sekisui Plastics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sekisui Plastics Co Ltd filed Critical Sekisui Plastics Co Ltd
Priority to JP63-124542A priority Critical patent/JPH011518A/en
Priority claimed from JP63-124542A external-priority patent/JPH011518A/en
Publication of JPS641518A publication Critical patent/JPS641518A/en
Publication of JPH011518A publication Critical patent/JPH011518A/en
Publication of JPH0129692B2 publication Critical patent/JPH0129692B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/006—Using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous

Abstract

PURPOSE:To obtain a molded form, having hard, smooth and beautiful surface as well as hollow and light body and strong against external pressure, by molding from a parison consisting of synthetic resin containing foaming agent. CONSTITUTION:Polystyrene resin, containing foaming agent, is extruded by a blow molding extruder 1 and a parison (p), extruded out of a dice 2 at the tip end of the extruder, is inserted into blow molding tools 3 and the molding tolls are clamped. Next, air is blown through a solenoid valve 4 and a nozzle 40, projected into the parison (p) in the tools, to form the parison (p) so as to be hollow along the blow molding tools 3. When about 2.5sec has elapsed after forming the parison (p) so as to be formed hollow, the inside of the blow molded form is evacuated through a pipe 60, connected to a vacuum pump by the solenoid valve 6, whereby the inside surface of the molded form is foamed. A foamed blow molded form 5, provided with a smooth skin 50 on the surface, can be obtained in such a manner.
JP63-124542A 1988-05-20 Foam blow molded product with skin Granted JPH011518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63-124542A JPH011518A (en) 1988-05-20 Foam blow molded product with skin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63-124542A JPH011518A (en) 1988-05-20 Foam blow molded product with skin

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP6477179A Division JPS55156033A (en) 1979-05-24 1979-05-24 Skin attached foamed blow molded article method of fabricating the same

Publications (3)

Publication Number Publication Date
JPS641518A true JPS641518A (en) 1989-01-05
JPH011518A JPH011518A (en) 1989-01-05
JPH0129692B2 JPH0129692B2 (en) 1989-06-13

Family

ID=

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5052176A (en) * 1972-02-18 1975-05-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5052176A (en) * 1972-02-18 1975-05-09

Also Published As

Publication number Publication date
JPH0129692B2 (en) 1989-06-13

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